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// $G $D/$F.go && $L $F.$A && ./$A.out

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package main

type T1 struct {
        x, y int
}
type T2 struct {
        z, w byte
}
type T3 T1

type MyInt int

func (MyInt) m(*T1) {}

func main() {
        {
                var i interface{} = new(T1)
                _, ok1 := i.(*T1)
                _, ok2 := i.(*T2)
                _, ok3 := i.(*T3)
                if !ok1 || ok2 || ok3 {
                        println("*T1", ok1, ok2, ok3)
                        panic("fail")
                }
        }
        {
                var i interface{} = MyInt(0)
                _, ok1 := i.(interface {
                        m(*T1)
                })
                _, ok2 := i.(interface {
                        m(*T2)
                })
                _, ok3 := i.(interface {
                        m(*T3)
                })
                if !ok1 || ok2 || ok3 {
                        println("T", ok1, ok2, ok3)
                        panic("fail")
                }
        }
}